Finding the Fourth Proportional to 1,494.02, 2,061.80 and 830.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,494.02 : 2,061.80 = 830.88 : x
2. Step 2: Convert to fraction form
   1,494.02/2,061.80 = 830.88/x
3. Step 3: Cross multiply
   1,494.02x = 2,061.80 × 830.88
4. Step 4: Simplify right side
   1,494.02x = 1,713,108.38
5. Step 5: Solve for x
   x = 1,713,108.38/1,494.02
6. Step 6: Final answer
   x = 1,146.64